As the year comes to a close, we want to hear about what your biggest timesavers and productivity revelations of 2008 turned out to be—and we're willing to stoop to bribery.

We've got a stack of the latest Lifehacker book, Upgrade Your Life, sitting here, and one of them could have your name on it. Send us your best life hack-organizational strategy, computer tip, DIY project-and earn a chance to have one of these books signed and shipped to your door. Email us your submission to bookcontest at lifehacker.com and over the next couple of weeks, we'll feature the best hacks here on the site, and give the winners an autographed copy of the book. Here's the nitty-gritty of how this all works.

Your contest submission can be something that we've featured here on the site before, but ideally it offers some new take on it or material along with it-like pictures or a video clip. Show us your tricked-out workspace, your DIY cable catcher, that Python script that reminds you to take a break from typing. The only requirement is that the material is yours.

Email your photos, video clip, and an explanation of how it all works to bookcontest at lifehacker.com. We won't be able to respond to every submission personally, but if we decide to feature yours, we'll email you back asking for your shipping address to send you your book.